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罐壁人孔的作用及安装要求

来源: 栏目:产品知识 · 发布日期:2021/7/2 23:18:57

罐壁人孔安装于储罐下部,主要用于工作人员进出储罐,该呼吸阀主要材质有碳钢和不锈钢。

罐壁人孔

非(fei)金属(shu)油(you)(you)罐(guan)(guan)(guan)的(de)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)设(she)(she)在罐(guan)(guan)(guan)顶(ding)上(shang),金属(shu)油(you)(you)罐(guan)(guan)(guan)的(de)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)设(she)(she)在罐(guan)(guan)(guan)壁最下圈板上(shang)。大都为直径600mm的(de)圆孔(kong)(kong)(kong)(kong),其中心距底板750mm,为油(you)(you)罐(guan)(guan)(guan)清(qing)洗(xi)或(huo)维修(xiu)人(ren)(ren)(ren)员进出(chu)油(you)(you)罐(guan)(guan)(guan)用(yong)(yong),又称作道门。检修(xiu)清(qing)理(li)油(you)(you)罐(guan)(guan)(guan)时刻(ke)利(li)用(yong)(yong)人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)进行采光和通风。立式油(you)(you)罐(guan)(guan)(guan)的(de)容量在5000m3以(yi)下时设(she)(she)1~2个人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong),5000m3以(yi)上(shang)的(de)设(she)(she)2个人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)。人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)的(de)安装应与进出(chu)油(you)(you)管(guan)线相(xiang)隔不(bu)大于(yu)90°。当只设(she)(she)一(yi)(yi)个人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)时,应将其置于(yu)罐(guan)(guan)(guan)顶(ding)透(tou)(tou)光孔(kong)(kong)(kong)(kong)的(de)对(dui)(dui)面(mian);当设(she)(she)2个人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)时,其中一(yi)(yi)个设(she)(she)在透(tou)(tou)光孔(kong)(kong)(kong)(kong)的(de)对(dui)(dui)面(mian),另一(yi)(yi)个应至少与****个人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)相(xiang)隔90°。人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)应有一(yi)(yi)个设(she)(she)在进出(chu)油(you)(you)管(guan)右侧附近,并尽量使人(ren)(ren)(ren)孔(kong)(kong)(kong)(kong)正对(dui)(dui)罐(guan)(guan)(guan)室密(mi)闭(bi)门,以(yi)便(bian)人(ren)(ren)(ren)员进出(chu)、维修(xiu)油(you)(you)罐(guan)(guan)(guan)和通风接管(guan)用(yong)(yong)。

由于罐壁人孔安装在油罐的最下层体圈上,防渗漏就显得特别重要。要求两法兰结合面必须保证其平直度,无飘扭现象。加强板和法兰应尽量在整块钢板上切割而不拼接。法兰和盖板上加工有密封圈,在施工中要特别注意保护。密封用3mm厚石棉橡胶垫片,不允许有折裂。安装人孔盖板上紧螺栓时,要成对角均匀用力,以防孔盖变形。

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